<!DOCTYPE html>
<html>
<body>
<p id="demo">点击这个按钮，获得您的坐标：</p>
<button onclick="getLocation()">试一下</button>
<script>
    var x=document.getElementById("demo");
    function getLocation()
    {
        if (navigator.geolocation)
        {
            navigator.geolocation.getCurrentPosition(showPosition);
        }
        else{x.innerHTML="Geolocation is not supported by this browser.";}
    }
    function showPosition(position)
    {
        x.innerHTML="Latitude: " + position.coords.latitude +
            "<br />Longitude: " + position.coords.longitude;
    }
</script>
</body>
</html>
